airflow helpers 源码
airflow helpers 代码
文件路径：/airflow/serialization/helpers.py
# Licensed to the Apache Software Foundation (ASF) under one
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# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
"""Serialized DAG and BaseOperator"""
from __future__ import annotations
from typing import Any
from airflow.settings import json
def serialize_template_field(template_field: Any) -> str | dict | list | int | float:
"""
Return a serializable representation of the templated_field.
If a templated_field contains a Class or Instance for recursive templating, store them
as strings. If the templated_field is not recursive return the field
:param template_field: Task's Templated Field
"""
def is_jsonable(x):
try:
json.dumps(x)
return True
except (TypeError, OverflowError):
return False
if not is_jsonable(template_field):
return str(template_field)
else:
return template_field
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